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Proceedings Paper

Temporal characterization of plasma cw high-power CO2 laser-matter interaction: contribution to the welding process control
Author(s): Thierry Engel; M. Kane; Joel Fontaine
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Paper Abstract

During high-power laser welding, gas ionization occurs above the sample. The resulting plasma ignition threshold is related to ionization potential of metallic vapors from the sample, and shielding gases used in the process. In this work, we have characterized the temporal behavior of the radiation emitted by the plasma during laser welding in order to relate the observed signals to the process parameters.

Paper Details

Date Published: 18 August 1997
PDF: 8 pages
Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); doi: 10.1117/12.281145
Show Author Affiliations
Thierry Engel, Ecole Nationale Superieure des Arts et Industries de Strasbourg (France)
M. Kane, Ecole Nationale Superieure des Arts et Industries de Strasbourg (France)
Joel Fontaine, Ecole Nationale Superieure des Arts et Industries de Strasbourg (France)


Published in SPIE Proceedings Vol. 3097:
Lasers in Material Processing
Leo H. J. F. Beckmann, Editor(s)

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